Trushin, Maxim and Schliemann, John (2007) The Minimum Electrical and Thermal Conductivity of Graphene: Quasiclassical Approach. Phys. Rev. Lett. 99, p. 216602.
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We investigate the minimum conductivity of graphene within a quasiclassical approach taking into account electron-hole coherence effects which stem from the chiral nature of low energy excitations. Relying on an analytical solution of the kinetic equation in the electron-hole coherent and incoherent cases, we study both the electrical and the thermal conductivity whose relation satisfies the Wiedemann-Franz law. We find that most of the previous findings based on the Boltzmann equation are restricted to only high mobility samples where electron-hole coherence effects are not sufficient.
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann|
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 15:18|
|Last Modified:||16 May 2012 11:53|
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